Assicrnob



Patented Dec. l27, i927. U N IT E D ADTEL Y. DODGE, F son v or eine FICE.

BRKE

Application idee ."oeeember This invention relates to bre-ire shoes, and is illustrated as embodied in e. shee notai central shoe -for a three-shoe automobile brake. An object of the invention is to provide a shoe particularly adapted for use in a brake of this general cha-raster, different arrangements relating to eonstrnciing en anchoring arm at one end of the. ar` ranged to overlap an adjacent shoe, to forniing the opposite end for' attaohment 'to e floating or servo shoe, and to importent in proved details in building the shoe up from sheet metal stampings.

These various features of novelty wi-li he apparent *the following description of the illustrative"embodiment shown it "i accompanyingrawings, in whieh:

Fig. 1 is a vertical section through brake, just` inside the wheel, showing im. shoes in side elevation;

Fig. 2 is an inside elevation of the novel center shoe;

Fig. 3 is s. side elevation of this snee de taehed; l

Fig. 4 is a section through this the line 4-4 oi' Fig. l;

Fig. 5 is a. section through this the line 55 of Fig. l, showing iti pivot; and

Fig. (S is a partial. set-tion thrimgh two of the shoes on the lines 6-6 of Fig. sherring the articulating pivot Connecting thein.

The brake illustrated includes a drum and a backing plate l2. A double cani iet expands against the retanee oi a main return spring 16 a reverie .shoe 8 anchored to plate 12 at 20, and float, n ferro shoe 22. Shoe turns w'ih the drum forces against the drinn center shoe Q4 or Cliored at 96, agniiistI the resistanee of en auxiliary return spring 2S.

Each of the shoes end 522 is forked or otherwise formed at iis end to straddie or otherwise overlap its end of 'he center shoe Q4. iVhile no parirnlar manner of forming these shoes is essential' to the Y "sont invention, they may i desired he made as die scribed and @-lriimeei in. eimer oi in ing appiieotions oro". i.

i'esoeciziifely in i v ticulariy to the n as agparens n at its anchored one is oset .inwardiy or the cylindrical Corre oiI he friction face 17, i925. Serial No.` 75,905.

of the shoe, and extends between the arms forming the forked end of shoe 18. This permits the friction face of shoe 18 to he brought close to the end of the friction face of shoe 24.

Preerahiy shoe 24 is made up of two angleseetion stampings rivetedor otherwise secured hack to heck, as appears in Figs. 4, 5, and 6. A iange extends continuously around each of the stampings, a part of the two Songes 3G being cylindrical and together forming the friction face of the shoe, the brake lining being secured 'to this face. The flanges 30, where oil'set inwardly of the curve of the friction face of the shoe at its authored end, are narrowed so that they within the arms forming the overlapend olf shoe i8, the I'it being loose igh to faeiiitnte assembly of the brake, t the saine time elose enough to posi- 'ne shoe laterally.

Anchor pivot 28 extends through relative- "e openings 34 in the arms of shoe 18, does not interfere with the move that shoe, and similariy anchor of shoe 18 extends through a relaf opening in the Central web of Xie material of the parts of the forming the central weh of piaceri in opposite directions .ing through which pivot in :i triangular luhrieantmemvo fi?! surrounding the pivot. A opposite ond., e i2/i comes to a not, to avoid intererence with shoe f itrzii weh heing tapered down at to give this orm. Some end, the shoe is formed 42, having a lubricant-rei4, for an articulating pivot io the firms forming the ovexiiapnwg f d oi shoe (Fig, Pivot i' niooth enlarged head 48 slidahiy seizing' plate 12 to position of 42 and the end of the ishort lugs or proies `.tering projections to :wes of the arms f nent of spring we hos been die is not my intention to The Ganges 30 of shoe 100 rige invention to that pa:

ticular shoe, or otherwise than by the terms a second opening for-attachment of a returnfo of the appended claims.

I claim:

1. A brake shoe having a substantially cylindrical friction face and a radial strengthening web extending a considerable distance beyond the friction face and otlset within the curve of the friction face at one end of the shoe provided with a relatively large opening for the anchor of an adjacent shoe at a point within the angle determined by the friction face.

2. Abrake shoe having a substantially c lindrical friction face and a radial strengthening web extending as an anchoring arm a considerable distance beyond the friction face'at one end of the shoe and provided with a relatively large opening for the anchor of an adjacent shoe at a point within the angle determined by the friction ffice. i

3. A brake shoe having a substantially c lindrical friction face and a radial strengthening web extending as an anchoring arm at one end of the Shoe a considerable diS- tance beyond the friction face, saidweb tapering down at the oppositeend of the shoe to a blunt point at the opposite end of the friction face,.to afford ample clearance for an adjacent shoe.

4. Abrake shoe having a substantially cylindrical friction 1face and a radialstrengt ening web extending as an anchoring arm at one end.of the shoe a considerable distance beyond the friction facetrc'aid web tapering down at the opposite end of-.the shoe to alford ample clearance for .an a lacent shoe, said web having ano ening same distance from said opposite en to be yotally connected to said adjacent shoe. t

5. A brake shoe having a substantiallyicylindrical friction face and a radial strengthening web extending as an anchorin arm at one end ol the shoe a considerab e distance beyond the friction face, said web tapering down at the opposite end of t'he shoe to afford ample clearance for an adjacent shoe, said web having an o ning some distance from said opposite en to-be pivotally signed my name. connected to said adjacent shoe and having spring opposite endof the shoe.

6. A brake shoe having a substantially lindrical friction face and a radial strengthening web extending as an anchorin arm between said first opening and said at one end of the shoe a. considerab e distance beyond the friction face, said web tapering down at the opposite end of the shoe and adapted to be stra dled by arms forming the end of an .adjacent s'hoe, the vweb havin laterally-extending centering lugs near sai opposite end for en agement with the inner faces of'said stradd ing arms.

7. A brake shoe includingtwo tion stampings secured back to bac and having an opening for a pivot with the material of the 'stampings oppositely displaced about the opening to forma lubricant-retaining groove about said pivot.

8. A brake shoe including two .an le-secf tion stampings secured back to ba and with the material of the stampings o pohaving near each end an opening for a pivot sitel displaced about each opening to orm a lu ricant-retaining groove about the corresponding pivot.

9. A brake shoe including two angle-section stampings secured backvto bac with oppositely-extending lugs preed from the inner edges of the webs of the stampings le-secnear one end of the-shoe, to form centering projections to ,engage the inner faces of a an adjacent shoe. .Y

10. A brake shoe including two mle-section stampings' secured back`to bac with a Harige extending continuouelyaround the pair of straddling arms forming the end of Y edge of the back of cach stampin Part. of

each flange being cylindrical ari forming half-the friction face of the shoe, and the langes'being considerably narrowed in width ,fand displaced within the curve of the cylindrical part for a considerable distance at' one end of the shoe, to form a stiiened anchoring arm.

In testimony whereof, I have hereunto Abner. Y. DODGE.Y 

